Depending on what kind of test it is, there may be a variety of over the counter medications which could show up positive for Meth. If it is GC-MS, Gas Chromoatograohy-Mass Spectrometry, it is unlikely to pick up Meth from anything but Meth as it is extremely precise. GC-MS is the favoured testing method, as it has a ‘gold standard’ for forensic substance identification because it is used to perform a specific test. If it is an Immunoassay Test, which is a biochemical test that measures the presence or concentration of a substance within a solution, it could pick up Meth from Ephderine, commonly used as an appetite suppressant, concentration aid, decongestant, and to treat hypotension associated with anaesthesia. It could be found in Pseudoephedrine which is found in Sudafed, Phentermine which is an amphetamine also used as an appetite suppressant, Fenfluramine, an anti obesity medication, Phenylpropanolamine, a psychoactive drug, Propranolol, used to to treat tremors, angina, high blood pressure and other heart conditions, Phenmetrazine, another appetite suppressant, Mephentermine, a cardiac stimulant, formerly used in Wyamine nasal decongestant inhalers, MDMA which is Ecstasy, Methylphenidate used to treat hyperactivity disorder, Bupropion, an atypical antidepressant and smoking cessation aid. Meth can also be found in Mahuang Tea or tea made from plants belonging to the ephedra family. Meth or ‘crystal meth’ are the colloquial names for Methamphetamine, Methylamphetamine, N-methylamphetamine, or desoxyephedrine. Meth is highly addictive as it as it releases dopamine in the brain which triggers a psychological reward and induces euphoria. If a urine Meth test is taken, it is extremely accurate and is correct more than 99% of them time. Meth can be detected in the system for up to 3-5 hours and it can be detected within 5 minutes when a saliva test is taken.
